Why can't I add bundle to cart?

There are mainly 3 reasons:

1. Draft bundle
   Just like your other products, Draft products are not allowed to be put in the cart. If you are testing, you have to change the bundle to 'active' status. 
   After that, the 'Add Bundle to Cart' button will be enabled 
2. Protected by password mode
   If your store is password-protected, you can place a test order with Shopify Bogus Gateway. 
3. Conflicts with other apps
   Occasionally, some apps block the process of adding the bundle to the cart. It happens a few times with other widgets on the product page. Usually, these apps change the standard product page, but we're using a custom product template, so they accidentally change something else.
   
   If you discover the issue, please send us the app name and we'll resolve it.